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W. I. FREEDIVIAN.

SIGN.

'APPLICATION FILED MAY 28. 1917.

Patented Apr. 9, 1918.

prirr s 7 WILLIAM I. FREEDMAN, OF DETROIT, MICHIGAN.

SIGN.

Specification of Letters Patent.

Patented Apr. 9, 1918.

Application filed May 28, 1917. Serial No. 171,384.

To all whom it may concern:

Be it known that 1, WILLIAM I. FREED- MAN, a citizen of the United States, and residing at Detroit, in the county of Wayne and State of Michigan, have invented a new and Improved Sign, of which the following is a specification.

This invention relates to improvements in illuminated advertising-signs, and its object is to provide an attractive and novel sign of simple, durable and economic construction, comprising a chamber for electric light bulbs, and a sheet or plate extending down vertically from said chamber, the bulbs being positioned substantially centrally above said sheet or plate. It further consists in mounting other sheets or plates of perforated metal parallel to the first plate, the perforations in the other plates permitting the light reflected by the first plate to pass out, the inner sides of the outer plates and the sides of the inner plate being burnished or so coated that light will be readily reflected thereby. It also consists in so mounting sheets of colored glass in the bottom of said chamber that the light passing down onto said inner plate will be changed thereby.

In the accompanying drawing, Figure 1 is a perspective view of this improved sign when completely assembled. Fig. 2 is a vertical longitudinal sectionthereof. Fig. 3

' is a vertical transverse section thereof. Figs.

4 and 5 are end elevations of modified forms of light chambers.

Similar reference characters refer to like parts throughout the several views.

The drawing shows a light chamber consisting of a top 1, ends 2 and sides 3, one of which may be formed with doors 4 of any desired type through which the electric light bulbs 5 maybe inserted. These bulbs may be supported in any desired manner so long as they are vertically above the flat plate 6 which extends down from the light chamber, but I prefer to mount them on small angle brackets 7. The wiring of these bulbs is omitted from the drawings as it forms no part of this invention.

The plate 6 may be connected to the light chamber in any desired manner, but I prefer to secure small T bars 8 having flanges 9 at their ends between the side plates 3 of the light chamber by means of the rivets 10. An angle bar 12 may connect the upper edge of the plate 6 to these cross bars.

Any desired letters, word or device 13 may be painted or printed on this plate 6 and if desired, the plate may be illuminated in different colors through the use of sheets 14 of colored glass which rest upon the horizontal flanges of the T bars 8. The interior surfaces of the plates constituting the light chamber are preferably polished or coated with a good light reflecting material.

End plates 16 having flanges 17, front and rear side plates 18 and a bottom plate 19 may be connected to the light chamber and to the plate 6, which thereupon becomes a partition plate as well as a double-faced reflector. The sides 18 constitute front and rear walls and may be formed with letters or symbols 21 by cutting apertures of the desired character through these plates and may also be formed with openings 22 through which the letters 13 on the plate 6 may be seen. The interior surfaces of the sides 18 are preferably coated with good light-reflecting material so that the light from the bulbs in the lighting chamber is reflected downward against the plate 6 and from it again against the faces of the side plates. This results in clear, bright letters 21 and a clear illumination of the letters 13.

Instead of the light chamber being rectangular in cross section, it may have any other desired shape, Figs. 4 and 5 showing two ends 24 and 25 respectively.

Instead of the parts 2 and 16 being separate as shown in Fig. 1, they can be made integral if desired. In a similar manner the corresponding parts in a construction having a light-chamber such as shown in Figs. 4 and 5 may also be made integral instead of in two pieces as there shown. It will also ing across said open bottom, a plate suspend- 10 be understood that While it is most desired centrally of said chamber from said bars able to have the front and rear plates 18 and provided with advertising devices, a.

only about two inches from the plate 6, yet series of lamps mounted in the light-chamthis distance may be varied if desired. ber centrally of the plate and above said I claim across bars; and sheets of colored glass closing 15 In '"a' sign, the "combination "of a light theb'ottomwf-said light chamberabove said chamber formed with closed top, ends and "plate. sides but with an openlbottom,.barsrextend- WEILLIAM I. FREEDMAN.

coptel 01 this patent may be obtained for five seats: each, by addressing the "Commissioner 0! Patents Washington, D. G. 

